EP1404130A1 - Verfahren und Vorrichtung zur Verarbeitung eines mit einem zusätzlichen Bildsignal gemischten Videosignals - Google Patents

Verfahren und Vorrichtung zur Verarbeitung eines mit einem zusätzlichen Bildsignal gemischten Videosignals Download PDF

Info

Publication number
EP1404130A1
EP1404130A1 EP20020021395 EP02021395A EP1404130A1 EP 1404130 A1 EP1404130 A1 EP 1404130A1 EP 20020021395 EP20020021395 EP 20020021395 EP 02021395 A EP02021395 A EP 02021395A EP 1404130 A1 EP1404130 A1 EP 1404130A1
Authority
EP
European Patent Office
Prior art keywords
processing
video signal
video
image
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20020021395
Other languages
English (en)
French (fr)
Inventor
Sven Salzer
Frank Janssen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to EP20020021395 priority Critical patent/EP1404130A1/de
Priority to AU2003248047A priority patent/AU2003248047B2/en
Priority to US10/666,531 priority patent/US20040085480A1/en
Priority to JP2003331638A priority patent/JP2004120757A/ja
Priority to CNB031648126A priority patent/CN1229983C/zh
Publication of EP1404130A1 publication Critical patent/EP1404130A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H04N7/012—Conversion between an interlaced and a progressive signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440281—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the temporal resolution, e.g. by frame skipping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/265—Mixing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0127—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter
    • H04N7/013—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter the incoming video signal comprising different parts having originally different frame rate, e.g. video and graphics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0135—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving interpolation processes
    • H04N7/014—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving interpolation processes involving the use of motion vectors

Definitions

  • the present invention relates to a method for processing a video signal and a video processing unit therefore.
  • the present invention relates to a pixel based switching of different up-conversion algorithms.
  • Video signals usually consist of a series of subsequent images. These images are transmitted as frames of a progressive video signal or as fields in case of an interlaced video signal.
  • a field comprises either the even or the odd lines of a video frame, and for transmitting the information of one frame two fields have to be transmitted.
  • Today's common TV standards, namely PAL, SECAM or NTSC transmit video signals comprising fields at 50 Hz or 60 Hz field rate, respectively.
  • CRT cathodic ray tube screen
  • a small or medium size CRT screen may be operated at the standard 50 Hz or 60 Hz field rate without flicker being noticed.
  • CRT screens are available at larger sizes the problem arises that flicker of large areas is perceptible when CRT screens are operated at the default 50Hz or 60Hz field rate of the TV standards.
  • the flicker is greatly reduced by operating the CRT screen at a higher field or frame rate.
  • Frame rates up to 100Hz are desired.
  • an up-conversion of the video signal to a higher field rate or frame rate is used.
  • Fig. 1 illustrates a conversion of an input video signal to a different field/frame rate.
  • the fields or frames 1 of the input video signal are spaced in equal time intervals.
  • fields/frames 2 are spaced at different time intervals.
  • some fields or frames 1 of the input video signal may coincide in time with fields or frames 2 of the converted video signal.
  • a field/frame 1 from the input video signal may be output (indicated by arrow 3) as field/frame 2 of the converted video signal.
  • the remaining fields/frames 2 of the converted video signal need to be generated based on the fields/frames 1 of the original video signal.
  • a simple approach for generating the additional frames to be inserted is the use of image data from existing frames. This approach, however, results in image degradation due to a visible discontinuity in the motion of objects. This effect is illustrated in Fig. 2.
  • the motion of an object 12, 13 through the video frames 10 and 11 of the converted video signal deviates from the smooth motion 14 of object 12 in the original sequence of video frames 10, causing the perceived discontinuity of the motion.
  • FIG. 3 Another method for generating the additional frames 11 in a frame rate conversion is illustrated in Fig. 3. This approach is based on the interpolation of image data from adjacent frames 10. For the generation of each pixel of an additional frame 11 an averaging is performed over corresponding pixels of adjacent frames 10 of the original video signal. As a result, the distortion of motion is less visible. The motion becomes smoother but moving objects 12 appear blurred 15 in the generated frames. This method may be applied with good results when no motion or only slow motion is present in the video scenes.
  • the motion 14 of objects within frames 10 is detected by a motion estimation and represented by motion vectors.
  • motion estimation is performed on a block basis.
  • Motion vectors are obtained from the recognized block displacement.
  • the position 17 of an object in the frame to be inserted 11 is computed and image data of the object 12 is inserted correspondingly.
  • Motion compensation achieves good image quality for images with moving objects.
  • motion estimation produces wrong motion vectors when scenes get more complex, e.g. when moving objects disappear behind other objects. Wrong motion vectors may lead to visible artifacts.
  • a conversion of a field rate of an input video signal can be performed in a similar manner. Therefore, a conversion of a field rate shall be encompassed when reference is made to a frame rate conversion in this description and in the claims.
  • a particular problem of displaying fields is that line flicker and aliasing may occur.
  • a loss of resolution may be perceived in moving objects, as each field does carry only half of the image information and image information from separate fields is no longer perceived as being combined for moving objects.
  • de-interlacing is necessary in order to display an interlaced video signal on matrix-type displays which require a progressive video signal, such as LCD-screens and projectors. Performing a de-interlacing may reduce line flicker and blurring of fast moving objects and the produced video signal may be displayed on LCD-screens and the like.
  • De-interlacing which takes motion into account leads to the technique of motion compensated de-interlacing.
  • a motion estimation determines a movement of image objects between two fields of an input video signal and assigns motion vectors to the image objects.
  • image data of adjacent fields may be shifted according to the determined motion vectors and used for correctly determine image data of missing lines.
  • a motion compensated de-interlacing may produce artifacts in case of wrong motion vectors.
  • on-screen-displays In modern TV receivers and other video devices very often on-screen-displays (OSDs) are inserted to visualize additional information.
  • An on-screen-display generally superimposes additional image data on the input video signal for displaying the additional image data together with the input video signal.
  • Superimposing may on the one hand include the insertion of the additional image by replacing the original image data with additional image data.
  • the additional image data may transparently overlay the original image data, which are still visible as a background image. Both methods shall be encompassed by the term "superimposing”.
  • a block diagram of a configuration for superimposing additional image data is described below with reference to Fig. 10.
  • a video signal 31 from a video source 32 and additional image data 33 from an OSD generator 30 are provided to a mixer 34 for superimposing the additional image 33 to a video image 31.
  • the additional image 33 is superimposed by replacing the corresponding image area of the video image, based on a fast blanking signal 35 provided to the mixer 34.
  • the fast blanking signal 35 controls a switching between image data of the video signal 31 and data of the additional image 33.
  • a video image 31 and an additional image 33 are mixed and a mixed video signal 36 is output by mixer 34 and displayed on display 37.
  • Fig. 11 An example of a configuration for further processing these mixed video signals is illustrated in Fig. 11.
  • the configuration of Fig. 11 is almost identical to that of Fig. 10 with the exception of an additional processing circuit, i.e. converter 38.
  • converter 38 is an up-converter for converting the mixed video signal 36 from mixer 34 to a processed video signal 39 having a higher frame rate.
  • the processing of the above described mixed video signal may, however, result in artifacts in the superimposed image and the image area surrounding the superimposed image.
  • the image quality of the output video signal may suffer due to an image processing intended for providing an output video signal of improved image quality.
  • control signal is synchronized with the pixel clock of the video signal.
  • the synchronization to the pixel clock enables to switch the image processing on a pixel basis.
  • the image processing can be switched for processing fine details differently.
  • the processing is not restricted to predefined larger image areas, like rectangles underlying a displayed text. Text and single characters may thus be superimposed on the input video signal and processed separately therefrom.
  • the image data of the additional image are generated together with the control signal.
  • the control signal does not need to be generated separately and may efficiently be used for the superposition and the subsequent processing of the additional image data.
  • the additional image comprises user interaction information to be displayed together with the original video signal.
  • the control signal used for superimposing the additional data may efficiently be supplied to the image processing stage for processing the mixed image signal.
  • the additional image and the control signal are generated by an OSD circuit.
  • an OSD circuit is usually present in video processing devices like VCRs, TV receivers, video display devices, etc., the control signal for switching between different image processing paths can be easily derived therefrom.
  • interpolation may be used, for instance, for de-interlacing and frame rate conversion.
  • the control signal indicates the use of interpolation for those areas which would show artifacts if processed differently.
  • motion compensating is used, among others, for de-interlacing and frame rate conversion.
  • Motion compensation is applied to image areas in accordance with the control signal, when no visible artifacts resulting from motion compensation may be expected.
  • de-interlacing may be applied in the processing of the mixed image.
  • different processing methods are available which may result in specific artifacts when uniformly applied to the mixed video signal and the superimposed image therein.
  • the control signal for de-interlacing separate areas of a video image by different methods artifacts may be avoided and the image quality can be increased.
  • the mixed video signal is converted to a different frame rate.
  • frame rate conversion different processing methods are known, which may each result in specific artifacts when applied to the mixed video signal and the included superimposed image.
  • the control signal may indicate a separate frame rate conversion processing for areas of the superimposed image and may thus avoid artifacts typical for such an area and a certain processing method.
  • a frame rate conversion performs any of interpolating image data, applying motion compensation to the images and only using unprocessed video data from the input video signal in order to generate video images of the new frame rate.
  • Each processing method has its advantages and drawbacks. Interpolation performs well when the video image content changes or comprises only a small amount of motion. The motion of moving image objects can be taken into account by employing motion compensation, but artifacts may occur in superimposed images and in the surrounding image area of superimposed image data. Unprocessed video data from the input mixed video signal may be used when the image content between subsequent images does not change.
  • the control signal enables a selective application of any of such processing methods on separate areas of the video image including the superimposed image area, wherein no or only minor artifacts may result.
  • the processing, which is employed for frame rate conversion is selected in accordance with the control signal.
  • the control signal does not only indicate separate image areas, but additionally includes information indicating a particular image processing.
  • image data of the additional image within the mixed video signal are used without any further processing.
  • image quality can be maintained and artifacts can be avoided.
  • image data of the superimposed image within the mixed video signal are only interpolated.
  • Processing a superimposed image by performing an interpolation of its image data can avoid artifacts. For instance, a transparently superimposed image may suffer from motion compensation due to wrong motion vectors of image objects moving in its background image. Interpolation can avoid such artifacts and still display motion reasonably smooth.
  • image data of the video signal surrounding the image area of the additional image data are only subjected to image data interpolation. Processing the surrounding area by motion compensation can produce artifacts as wrong motion vectors may occur in the area surrounding the superimposed image. The artifacts can be avoided by employing interpolation.
  • control signal comprises processing selection information in accordance with the image content of the mixed video signal.
  • the processing selection information indicates a particular processing for particular image areas.
  • Such a control signal enables the use of an appropriate processing in each image area in accordance with the image content of that area.
  • the video processing unit of the present invention comprises a display for displaying the mixed video signal.
  • the video processing unit of the present invention comprises different processing paths for the input video signal and a selector for selecting one of the processing paths in accordance with the control signal.
  • Each processing has advantages and drawbacks. By employing the control signal for selecting an appropriate processing path for the processing of each separate image area, the occurrence of artifacts can be minimized.
  • the processing paths comprise any of interpolating image data, applying motion compensation to the images and using unprocessed video data.
  • Each processing has its advantages and drawbacks.
  • the corresponding path may be selected by the control signal to minimize the occurrence of artifacts and increase the image quality when processing image data of separate areas of video images.
  • the selector for selecting a processing path comprises a binary switch.
  • This switch may be used for selecting between two processing path.
  • Such a switch is easily implemented or added to existing designs and may be operated at a high speed.
  • the selector for selecting a processing path comprises a cascade of binary switches.
  • a cascade of binary switches hierarchically selects among several processing paths, and may be implemented with low effort and be operated at high speed.
  • the switches are controlled by binary switch control signals.
  • information may be exchanged by employing a serial inter IC bus, e.g. the I 2 C bus.
  • a serial inter IC bus e.g. the I 2 C bus.
  • Such a bus may need considerable implementation effort and may not reach pixel clock speed.
  • a binary control signal may be used to control the switches of a selector directly, employing a simple interface. If an intermediate processing of the control signal is necessary, binary signals are easily buffered or processed otherwise.
  • the present invention is employed in any of the following devices, including a television receiver, a DVB receiver, a video monitor, a video recorder, a video playback device, including a DVD player, a video cd player or other video playback devices.
  • Each such device may advantageously employ a superposition of additional images and an improvement of the quality of the output video signal for customer satisfaction.
  • the control signal in these devices to control both, superposition and processing, an improved image quality is achieved, as areas relating to the superimposed image are processed differently.
  • the present invention provides a method and a processing unit for processing separate image areas of a video signal differently.
  • additional image data are superimposed on the video images of a received video signal (steps s1, s2) in accordance with a control signal indicating the insertion position of the additional image data.
  • the video signal including the additional image is processed in accordance with the control signal (step s3) and the processed video signal is output (step s4), preferably for display on a display device.
  • the superimposed image data and the video data surrounding the superimposed image can be processed differently on the basis of the control signal. In contrast to a uniform image processing, artifacts can be avoided by always employing an appropriate image processing method.
  • FIG. 14 An apparatus in accordance with the present invention is illustrated in Fig. 14.
  • the video signal 50 and the image data 51 are supplied to mixer 52.
  • Mixer 52 superimposes the additional image data 51 to the images of the video signal 50 in accordance with the control signal 53 and outputs a mixed video signal 54.
  • the mixed video signal 54 and the control signal 53 are fed to a processing circuit 55 processing the mixed video signal 54 in accordance with the control signal 53.
  • the processed video signal 56 is output from processing circuit 55, preferably for being displayed on a display device.
  • processing circuit 55 may perform an image improvement processing like de-interlacing, noise-reduction, image stabilization and frame rate conversion, specifically a frame rate up-conversion.
  • Processing circuit 55 preferably performs a frame rate up-conversion.
  • Frame rate up-conversion is desirable in order to reduce flicker on large displays by driving the display at frame rates up to 100Hz.
  • different up-conversion algorithms have their specific advantages and drawbacks for processing different image content. Therefore it is an important application of the present invention to advantageously employ different up-conversion algorithms for separate image areas.
  • Image data 42 which in part contain image data of the superimposed image may be displaced into the area surrounding the superimposed image by a wrong motion vector 41.
  • Such a motion vector 41 may be produced for image objects in proximity of the superimposed image. Therefore, not only the area of the superimposed image but also the area of the video image surrounding the additional image should not be processed by motion compensation.
  • the size of this surrounding area may be defined based on a maximum size of possible motion vectors, e.g. based on the search range during motion estimation or other limits.
  • the application of different up-conversion methods for a video signal, having an opaque additional image superimposed thereon will be described in detail with reference to Fig. 15.
  • the images 20 of the video signal are divided into separate image areas.
  • the configuration of the image areas is represented by the control signal.
  • the different image areas are denoted by reference numerals 80, 81 and 82 in Fig. 15.
  • Numeral 80 denotes the area of the superimposed image, 81 an image area surrounding the superimposed image area 80, and 82 the original input video image except the image areas 80 and 81.
  • the area of the superimposed image 80 is not subjected to any processing.
  • the OSD image data are up-converted in their original high quality by avoiding the generation of artifacts. Fine structures and lines can be preserved, and the on-screen-display image is sharp and clear.
  • image data of the image area 81 surrounding the superimposed image 80, an interpolation of the image data is applied.
  • image data surrounding the inserted OSD image may not be distorted by artifacts which are related to motion compensation.
  • Motion compensation is applied for the frame rate up-conversion of the image data of the remaining video image area 82.
  • Area 82 does not contain irregularities like superimposed image data. Hence, motion compensation may result in a high quality for processing image data of area 82.
  • FIG. 16 a similar separation and processing of an input video signal is illustrated. This example differs from Fig. 15 in that the additional image data are superimposed transparently on the image data of the input video signal.
  • the image data of the transparent image of image area 80 are preferably processed by interpolation.
  • the area 80 can contain moving objects in the background of the superimposed image data. Due to a transparent superposition of different image data in the same image area 80, motion estimation may produce wrong motion vectors. By employing interpolation of the image data, artifacts resulting from wrong motion vectors can be minimized.
  • the data of image areas 81 and 82 may be processed in the same manner as described with reference to Fig. 15 relating to a superposition of opaque additional image data.
  • Picture-in-picture image data in image area 80 may be processed by interpolation. Performing interpolation on image data of image area 80 may avoid artifacts resulting from motion compensation. As the picture-in-picture image area 80 is of a small size, interpolation may result in sufficient quality.
  • motion compensation is applied to image data of the picture-in-picture image.
  • motion estimation may produce motion vectors indicating a translation of image data from outside the picture-in-picture image area 80 into the picture-in-picture image area 80. Such motion vectors may result in artifacts in the picture-in-picture image area 80.
  • motion compensation may be applied to image data of the picture-in-picture image area 80 by ensuring that motion estimation may not take image data of the image areas outside the picture-in-picture image into account. This may be achieved by separating an inner area 84 of the picture-in-picture image from the outside areas 81 and 82 of the video image 20. In that inner area 84 motion compensation and thus motion estimation may be performed. An outer area 83 surrounding the inner area 84 inside picture-in-picture image area 80 is again defined based on a maximum motion vector. For that outer area 83 interpolation of the image data is preferred. The inner area 84 of the picture-in-picture image, may thus be processed by applying motion compensation.
  • control signal can indicate a processing mode, which is appropriate for the content of the corresponding image area, with the result that no or only minor artifacts may occur.
  • a high video image quality can be obtained in the processed video signal.
  • the television receiver contains a receiving unit 60 and a display unit 61.
  • Receiving unit 60 receives a television signal 62 and provides a video signal 54 to be displayed.
  • the video signal 54 output by the receiving unit 60 may have additional image data superimposed thereon.
  • the display unit 61 displays the received video data on display 67. For improving the image quality the display unit 61 further processes the video signal 54.
  • Such an image processing can include a frame rate up-conversion which reduces the flicker of displayed video images.
  • Receiving unit 60 comprises a video signal generator 63 receiving a television signal 62 and generating an input video signal 50 therefrom.
  • the video signal generator 63 may receive any kind of analog or a digital television signal 62.
  • the receiving unit 60 further comprises an OSD circuit 64.
  • OSD circuit 64 generates an additional image 51 for being superimposed on input video signal 50.
  • additional image data 51 is employed for displaying a graphical user interface which may relate to setup or control functions of a video device, including a DVB receiver, and user information from application platforms like Multimedia Home Platform (MHP) or Free Universe Network (FUN).
  • MHP Multimedia Home Platform
  • FUN Free Universe Network
  • the additional image data may also include videotext data. These data is transmitted with the television signal and can be received by the OSD circuit.
  • OSD circuit 64 generates the image data 51 to be superimposed and, in addition, the control signal 53 which indicates the position where the additional image 51 is inserted into the video image 50.
  • the control signal may also include information indicating a particular processing of the additional image area.
  • a further component of the receiving unit 60, mixer 52, uses the control signal 53 to perform the superposition of the additional image data 51 on the video signal 50 and outputs a mixed video signal 54.
  • image data of the input video signal 50 is replaced or transparently overlaid with data of the additional image 51.
  • receiving unit 60 may be a DVB receiver.
  • the video signal generator 63 receives a digital television signal 62 specified by DVB-T, DVB-S or DVB-C standard, each comprising a transport stream specified by the MPEG-2 standard.
  • a digital television signal 62 may also include information being transmitted additionally with the TV program like program information for an electronic program guide (EPG).
  • EPG electronic program guide
  • the display unit 61 of the television receiver will be described in detail with reference to the block diagram of Fig. 18.
  • the mixed video signal 54 is up-converted to a higher frame rate in order to reduce the flicker of the displayed image.
  • the mixed video signal may be de-interlaced and displayed as a progressive video signal, further increasing the image quality by e.g. reducing line flicker.
  • This up-conversion is performed by up-conversion circuit 65, producing an up-converted video signal 66 in accordance with control signal 53.
  • the control signal 53 is obtained from the OSD circuit 64 of the receiving unit 60.
  • Control signal 53 indicates a different processing for separate areas within the mixed video signal 54.
  • a control signal which is generated by standard OSD circuits and employed in a mixer for inserting additional image data into a video image is usually denoted as "fast blanking signal".
  • the fast blanking signal indicates the area of the superimposed image within the video image and is preferably employed for the control of the up-conversion procedure.
  • the fast blanking signal has the same frequency as the pixel clock of the mixed video signal, an accurate separation of the OSD image area and the remaining video image area is performed.
  • the fast blanking signal comprises only two different signal levels, for indicating the area of the superimposed image with respect to the input video signal.
  • the fast blanking signal By employing the fast blanking signal for switching between different processing, only two different processing methods can be employed.
  • the control signal needs to provide additional control information. An example for performing a different processing based on such additional control information is described above with reference to Figs. 15 to 17, wherein a video image is separated into the area of the superimposed image, the area surrounding the superimposed image and the area of the input video signal, each of which are processed differently.
  • a control signal adapted for selecting between more than two processing methods may be generated by a modified OSD circuit.
  • a modified OSD circuit can generate the control signal based on the current position of the superimposed image. It may, for instance, employ the position information to calculate the position of an area surrounding the superimposed image. Further it may use information corresponding to the image content or type of the additional image, i.e. picture-in-picture image data, opaque or transparent image data etc., to generate the control signal 53 which indicates a particular processing method for the area of the additional image.
  • the conversion circuit 70 receives the mixed video signal 54 for up-conversion. For selecting among different processing method the conversion circuit receives a control signal comprising a first and a second switch signal 77 and 78. For performing the up-conversion, conversion circuit 70 provides three different processing paths 71, 72 and 73 for generating an up-converted video signal. A selector 74 is provided to select the processed data from one of the processing paths 71, 72 or 73, preferably on a pixel basis.
  • the first processing path 71 of the conversion circuit 70 processes the mixed video signal 54 by employing motion compensation.
  • Motion compensation may include a motion estimation for recognizing image data as moving objects and assigning motion vectors to that image data.
  • the second processing path 72 is interpolating image data for generating additional frames. The interpolation is based on the frames of the input video signal 54.
  • the third processing path 73 provides unprocessed image data of the input video signal 54.
  • each switch signal may have two different levels, i.e. low, denoted as 0, and high, denoted as 1.
  • the input of each switch which is selected by the corresponding switch signal level is denoted as 0 or 1, in accordance with the definition of the switch signal levels.
  • Both switch signals 77, 78 are synchronized to the pixel clock of the video signals output by the processing paths 71, 72, 73 ensuring a correct timing of all signals and may thus select between the processing paths 71, 72, 73 with pixel-accuracy.
  • the output video signals of processing paths 71, 72, 73 are synchronized to each other in order to provide accurate switching between the data of the parallel processing paths.
  • the fast blanking signal of a standard OSD circuit may be used as the second switch signal 78, as the second switch 76 controls the processing of the image area of the additional image data.
  • Binary switch signals 77, 78 enable the use of an existing fast blanking signal as control signal 53 or part thereof. Further binary switch signals may be easily buffered of otherwise processed, in order to compensate for a delay e.g. in additional intermediate video processing.
  • the frame rate is converted to a lower frame rate in order to display video signals of different standards on the same screen at the same frame rate. Similar to up-conversion, different frame rate conversion methods are also applicable in down-conversion in accordance with the control signal employed by the present invention.
  • Still another embodiment may improve the image quality by image stabilization removing slight shifts of the whole image.
  • video signals are processed by a frame rate conversion employing motion vectors transmitted together with the video signal.
  • Such motion vectors are obtained in the compression of a video signal together with the compressed signal.
  • These transmitted vectors are used when applying motion compensation for up- or down-conversion of the decompressed video signal instead of performing motion estimation.
  • a separate processing of the image area of the superimposed image in accordance with the present invention, can avoid artifacts, due to motion vectors not related to the additional image data.
  • motion vectors are limited in magnitude and direction, so as not to distort the inserted image.
  • the control signal may indicate such a limitation.
  • cascaded processing methods can be applied to a video signal comprising superimposed image data in accordance with the present invention.
  • a first processing is applied to the video signal in accordance with the control signal and subsequently further processing can be applied in accordance with the control signal.
  • the processing methods may be performed by separate devices, each being supplied with the control signal.
  • the present invention relates to a method and an apparatus for processing an input video signal which comprises a plurality of subsequent video images.
  • An additional image is superimposed on the input video signal in accordance with a control signal for producing a mixed video signal.
  • Said control signal indicates the image area for superimposing the additional image.
  • the mixed video signal is subsequently processed by a processing circuit in accordance with the control signal.
  • the control signal indicates a different processing for separate image areas. In that way, a video signal, which has additional image data superimposed thereon may be processed without the occurrence of artifacts originating from a uniform processing of the mixed video signal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Graphics (AREA)
  • Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Television Systems (AREA)
  • Studio Circuits (AREA)
  • Controls And Circuits For Display Device (AREA)
EP20020021395 2002-09-24 2002-09-24 Verfahren und Vorrichtung zur Verarbeitung eines mit einem zusätzlichen Bildsignal gemischten Videosignals Withdrawn EP1404130A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP20020021395 EP1404130A1 (de) 2002-09-24 2002-09-24 Verfahren und Vorrichtung zur Verarbeitung eines mit einem zusätzlichen Bildsignal gemischten Videosignals
AU2003248047A AU2003248047B2 (en) 2002-09-24 2003-09-17 Method and video processing unit for processing a video signal
US10/666,531 US20040085480A1 (en) 2002-09-24 2003-09-22 Method and video processing unit for processing a video signal
JP2003331638A JP2004120757A (ja) 2002-09-24 2003-09-24 映像信号を処理するための方法および映像処理ユニット
CNB031648126A CN1229983C (zh) 2002-09-24 2003-09-24 用于处理视频信号的方法和视频处理单元

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20020021395 EP1404130A1 (de) 2002-09-24 2002-09-24 Verfahren und Vorrichtung zur Verarbeitung eines mit einem zusätzlichen Bildsignal gemischten Videosignals

Publications (1)

Publication Number Publication Date
EP1404130A1 true EP1404130A1 (de) 2004-03-31

Family

ID=31970301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020021395 Withdrawn EP1404130A1 (de) 2002-09-24 2002-09-24 Verfahren und Vorrichtung zur Verarbeitung eines mit einem zusätzlichen Bildsignal gemischten Videosignals

Country Status (5)

Country Link
US (1) US20040085480A1 (de)
EP (1) EP1404130A1 (de)
JP (1) JP2004120757A (de)
CN (1) CN1229983C (de)
AU (1) AU2003248047B2 (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1592251A1 (de) * 2004-04-30 2005-11-02 Matsushita Electric Industrial Co., Ltd. Bearbeitung von Tickern in Videosequenzen
WO2006126483A1 (ja) 2005-05-25 2006-11-30 Sharp Kabushiki Kaisha 映像表示装置
WO2007052452A1 (ja) 2005-11-07 2007-05-10 Sharp Kabushiki Kaisha 画像表示装置及び方法
EP1850589A1 (de) * 2006-03-29 2007-10-31 Sony Deutschland Gmbh Verfahren zur Erfassung des Videomodus
EP1931141A1 (de) * 2005-09-30 2008-06-11 Sharp Kabushiki Kaisha Bildanzeigeeinrichtung und verfahren
EP1961218A1 (de) * 2005-12-12 2008-08-27 Samsung Electronics Co., Ltd. Display-vorrichtung und verfahren und informationsverarbeitungsvorrichtung und verfahren zum bereitstellen einer bild-im-bild-funktion
EP1990997A1 (de) * 2006-02-28 2008-11-12 Sharp Kabushiki Kaisha Vorrichtung und verfahren zur bildanzeige sowie vorrichtung und verfahren zur bildverarbeitung
EP2066118A2 (de) * 2007-11-27 2009-06-03 Samsung Electronics Co., Ltd. Videovorrichtung und Verfahren zur GUI-Bereitstellung
EP2077663A1 (de) * 2006-09-28 2009-07-08 Sharp Kabushiki Kaisha Bildanzeigeanordnung und verfahren und bildverarbeitungsanordnung und -verfahren
EP2091249A1 (de) * 2006-10-27 2009-08-19 Sharp Kabushiki Kaisha Bildanzeigeanordnung und verfahren und bildverarbeitungsanordnung und -verfahren
EP2093711A3 (de) * 2008-02-19 2010-05-26 Sony Corporation Bildverarbeitungsvorrichtung und Bildverarbeitungsverfahren und Programm
EP2400745A1 (de) * 2010-06-22 2011-12-28 Sony Corporation Bildanzeigevorrichtung, Anzeigesteuerverfahren und Programm
CN102577365A (zh) * 2009-09-18 2012-07-11 夏普株式会社 视频显示装置
WO2012101542A1 (en) * 2011-01-28 2012-08-02 Koninklijke Philips Electronics N.V. Motion vector based comparison of moving objects
EP2299691A3 (de) * 2009-09-08 2014-03-26 Samsung Electronics Co., Ltd. Bildverarbeitungsvorrichtung und Bildverarbeitungsverfahren

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10346813B4 (de) * 2003-10-06 2013-08-29 I F M Electronic Gmbh Optoelektronischer Sensor und Verfahren zur Detektion eines Objekts in einem Überwachungbereich
KR100618816B1 (ko) * 2003-12-10 2006-08-31 삼성전자주식회사 서브 메모리를 구비한 이동 통신 단말기의 디스플레이 장치
JP4458925B2 (ja) * 2004-05-14 2010-04-28 キヤノン株式会社 映像処理装置
US7250983B2 (en) * 2004-08-04 2007-07-31 Trident Technologies, Inc. System and method for overlaying images from multiple video sources on a display device
US7826710B2 (en) * 2005-01-13 2010-11-02 Panasonic Corporation Playback device, computer program, playback method
TWI280061B (en) * 2005-04-27 2007-04-21 Novatek Microelectronics Corp Image processing method and device thereof
US20100201867A1 (en) * 2005-08-24 2010-08-12 Igor Sinyak Method for Graphical Scaling of LCDS in Mobile Television Devices
JP4306671B2 (ja) * 2005-11-04 2009-08-05 セイコーエプソン株式会社 動画像表示装置および動画像表示方法
JP4722672B2 (ja) * 2005-11-04 2011-07-13 シャープ株式会社 画像表示装置
US8659704B2 (en) 2005-12-20 2014-02-25 Savant Systems, Llc Apparatus and method for mixing graphics with video images
US8432495B2 (en) * 2006-09-15 2013-04-30 Panasonic Corporation Video processor and video processing method
JP4181592B2 (ja) * 2006-09-20 2008-11-19 シャープ株式会社 画像表示装置及び方法、画像処理装置及び方法
JP4181593B2 (ja) * 2006-09-20 2008-11-19 シャープ株式会社 画像表示装置及び方法
JP4303743B2 (ja) 2006-10-04 2009-07-29 シャープ株式会社 画像表示装置及び方法、画像処理装置及び方法
JP4933209B2 (ja) * 2006-10-05 2012-05-16 パナソニック株式会社 映像処理装置
JP4303745B2 (ja) * 2006-11-07 2009-07-29 シャープ株式会社 画像表示装置及び方法、画像処理装置及び方法
JP4181598B2 (ja) * 2006-12-22 2008-11-19 シャープ株式会社 画像表示装置及び方法、画像処理装置及び方法
JP2008160591A (ja) * 2006-12-25 2008-07-10 Hitachi Ltd テレビジョン受信機及びそのフレームレート変換方法
JP4615508B2 (ja) * 2006-12-27 2011-01-19 シャープ株式会社 画像表示装置及び方法、画像処理装置及び方法
JP4914235B2 (ja) * 2007-01-31 2012-04-11 キヤノン株式会社 映像記録再生装置及びその制御方法
JP5008431B2 (ja) * 2007-03-15 2012-08-22 キヤノン株式会社 画像処理装置及び画像処理方法
JP5040393B2 (ja) * 2007-03-23 2012-10-03 ソニー株式会社 画像処理装置および画像処理方法、プログラム、並びに画像表示装置
WO2008120273A1 (ja) * 2007-03-29 2008-10-09 Fujitsu Limited 合成映像検出装置及び合成映像検出方法
US20100020233A1 (en) * 2007-03-29 2010-01-28 Masafumi Ueno Video image transmitting device, video image receiving device, video image recording device, video image reproducing device, and video image displaying device
JP5023805B2 (ja) * 2007-05-16 2012-09-12 ソニー株式会社 画像処理装置および画像処理方法、並びにプログラム
JP5023893B2 (ja) * 2007-08-31 2012-09-12 ソニー株式会社 表示装置
US8237625B2 (en) * 2007-09-05 2012-08-07 Savant Systems, Llc Multimedia control and distribution architecture
JP5114274B2 (ja) * 2008-04-04 2013-01-09 株式会社日立製作所 テレビジョン受信機及びそのフレームレート変換方法
JP4937961B2 (ja) * 2008-04-28 2012-05-23 パナソニック株式会社 映像表示装置、及び映像出力装置
JP5219646B2 (ja) * 2008-06-24 2013-06-26 キヤノン株式会社 映像処理装置及び映像処理装置の制御方法
JP5207866B2 (ja) * 2008-07-31 2013-06-12 キヤノン株式会社 映像信号処理方法、映像信号処理装置
KR20100016741A (ko) * 2008-08-05 2010-02-16 삼성전자주식회사 영상처리장치 및 그 제어 방법
US20100128802A1 (en) * 2008-11-24 2010-05-27 Yang-Hung Shih Video processing ciucuit and related method for merging video output streams with graphical stream for transmission
JP5409245B2 (ja) * 2009-10-09 2014-02-05 キヤノン株式会社 画像処理装置及びその制御方法
CN101902596B (zh) * 2010-02-09 2012-08-22 深圳市同洲电子股份有限公司 一种图像处理方法、图像处理装置和数字电视接收终端
JP5304684B2 (ja) * 2010-02-22 2013-10-02 セイコーエプソン株式会社 映像処理回路、その処理方法、液晶表示装置および電子機器
JP5598014B2 (ja) * 2010-02-22 2014-10-01 セイコーエプソン株式会社 映像処理回路、その処理方法、液晶表示装置および電子機器
JP5556234B2 (ja) * 2010-02-25 2014-07-23 セイコーエプソン株式会社 映像処理回路、その処理方法、液晶表示装置および電子機器
JP5614098B2 (ja) * 2010-05-19 2014-10-29 ソニー株式会社 映像表示装置、フレームレート変換装置、および表示方法
EP2700035A4 (de) * 2011-04-18 2016-03-09 Supponor Oy Nachweis von einem videosignal hinzugefügten grafiken
US9025082B2 (en) * 2011-12-02 2015-05-05 Sony Corporation Image processing device, image recognition device, image recognition method, and program
WO2013153568A1 (ja) * 2012-04-09 2013-10-17 パナソニック株式会社 映像表示装置および集積回路
JP2013031195A (ja) * 2012-08-29 2013-02-07 Jvc Kenwood Corp 画像処理装置
US9258517B2 (en) * 2012-12-31 2016-02-09 Magnum Semiconductor, Inc. Methods and apparatuses for adaptively filtering video signals
JP2014179818A (ja) * 2013-03-15 2014-09-25 Sony Corp 画像処理装置および画像処理方法
RU2653592C1 (ru) * 2013-05-31 2018-05-15 Кэнон Кабусики Кайся Система захвата изображения, устройство захвата изображения и способ управления вышеперечисленным
CN105141870A (zh) * 2015-07-30 2015-12-09 Tcl海外电子（惠州）有限公司 电视信号处理方法及装置
CN105657485A (zh) * 2015-08-21 2016-06-08 乐视致新电子科技（天津）有限公司 一种音视频播放设备
JP2019134327A (ja) * 2018-01-31 2019-08-08 セイコーエプソン株式会社 画像処理装置、表示装置および画像処理方法
CN108376538B (zh) 2018-04-27 2020-05-29 京东方科技集团股份有限公司 用于显示装置的连接器及显示装置
CN112073788B (zh) * 2019-06-10 2023-04-14 海信视像科技股份有限公司 视频数据处理方法、装置及显示设备
CN113287322B (zh) * 2019-06-10 2024-10-29 海信视像科技股份有限公司 图像处理方法及显示设备
CN116017049A (zh) * 2022-12-28 2023-04-25 北京百度网讯科技有限公司 视频处理方法、装置以及电子设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5097257A (en) * 1989-12-26 1992-03-17 Apple Computer, Inc. Apparatus for providing output filtering from a frame buffer storing both video and graphics signals
US5978041A (en) * 1994-10-24 1999-11-02 Hitachi, Ltd. Image display system
JP2001111913A (ja) * 1999-10-07 2001-04-20 Matsushita Electric Ind Co Ltd 多画面合成における走査変換方法および多画面合成における走査変換装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0474287B1 (de) * 1990-09-03 1995-11-22 Koninklijke Philips Electronics N.V. Verfahren und Anordnung zum Verarbeiten eines Bildsignals
JPH04286279A (ja) * 1991-03-14 1992-10-12 Mitsubishi Electric Corp ラインフリッカー軽減方法
US5202765A (en) * 1991-05-06 1993-04-13 Thomson Consumer Electronics, Inc. Television receiver with picture in picture and non-linear processing
KR0124387B1 (ko) * 1993-12-07 1997-12-01 김광호 픽쳐인픽쳐기능을 구비한 영상디스플레이기기의 화면상태안정화 방법 및 그 장치
JP3554011B2 (ja) * 1994-03-29 2004-08-11 キヤノン株式会社 画像処理装置及び画像処理装置の制御方法
US5548341A (en) * 1994-08-05 1996-08-20 Thomson Consumer Electronics, Inc. Television receiver with non-linear processing selectively disabled during display of multi-image video signal
JP3953561B2 (ja) * 1996-10-15 2007-08-08 株式会社日立製作所 画像信号のフォーマット変換信号処理方法及び回路
JPH10174015A (ja) * 1996-12-06 1998-06-26 Toshiba Corp ２画面表示装置
JP4557374B2 (ja) * 2000-06-15 2010-10-06 キヤノン株式会社 画像表示装置及びその制御方法、並びに記憶媒体
TW511374B (en) * 2000-06-23 2002-11-21 Thomson Licensing Sa Dynamic control of image enhancement
JP4672856B2 (ja) * 2000-12-01 2011-04-20 キヤノン株式会社 マルチ画面表示装置及びマルチ画面表示方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5097257A (en) * 1989-12-26 1992-03-17 Apple Computer, Inc. Apparatus for providing output filtering from a frame buffer storing both video and graphics signals
US5978041A (en) * 1994-10-24 1999-11-02 Hitachi, Ltd. Image display system
JP2001111913A (ja) * 1999-10-07 2001-04-20 Matsushita Electric Ind Co Ltd 多画面合成における走査変換方法および多画面合成における走査変換装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 21 3 August 2001 (2001-08-03) *

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1592251A1 (de) * 2004-04-30 2005-11-02 Matsushita Electric Industrial Co., Ltd. Bearbeitung von Tickern in Videosequenzen
US7978266B2 (en) 2004-04-30 2011-07-12 Panasonic Corporation Ticker processing in video sequences
WO2006126483A1 (ja) 2005-05-25 2006-11-30 Sharp Kabushiki Kaisha 映像表示装置
EP1885126A1 (de) * 2005-05-25 2008-02-06 Sharp Kabushiki Kaisha Video-display-einrichtung
EP1885126A4 (de) * 2005-05-25 2010-08-25 Sharp Kk Video-display-einrichtung
US9881535B2 (en) 2005-09-30 2018-01-30 Sharp Kabushiki Kaisha Image display device and method
EP1931141A1 (de) * 2005-09-30 2008-06-11 Sharp Kabushiki Kaisha Bildanzeigeeinrichtung und verfahren
EP1931141A4 (de) * 2005-09-30 2010-11-03 Sharp Kk Bildanzeigeeinrichtung und verfahren
EP1950964A1 (de) * 2005-11-07 2008-07-30 Sharp Kabushiki Kaisha Bildanzeigeeinrichtung und verfahren
EP1950964A4 (de) * 2005-11-07 2012-05-16 Sharp Kk Bildanzeigeeinrichtung und verfahren
WO2007052452A1 (ja) 2005-11-07 2007-05-10 Sharp Kabushiki Kaisha 画像表示装置及び方法
EP1961218A1 (de) * 2005-12-12 2008-08-27 Samsung Electronics Co., Ltd. Display-vorrichtung und verfahren und informationsverarbeitungsvorrichtung und verfahren zum bereitstellen einer bild-im-bild-funktion
EP1961218A4 (de) * 2005-12-12 2009-01-21 Samsung Electronics Co Ltd Display-vorrichtung und verfahren und informationsverarbeitungsvorrichtung und verfahren zum bereitstellen einer bild-im-bild-funktion
EP1990997A4 (de) * 2006-02-28 2012-08-29 Sharp Kk Vorrichtung und verfahren zur bildanzeige sowie vorrichtung und verfahren zur bildverarbeitung
EP1990997A1 (de) * 2006-02-28 2008-11-12 Sharp Kabushiki Kaisha Vorrichtung und verfahren zur bildanzeige sowie vorrichtung und verfahren zur bildverarbeitung
EP1850589A1 (de) * 2006-03-29 2007-10-31 Sony Deutschland Gmbh Verfahren zur Erfassung des Videomodus
US8213718B2 (en) 2006-03-29 2012-07-03 Sony Deutschland Gmbh Method for video mode detection
EP2077663A1 (de) * 2006-09-28 2009-07-08 Sharp Kabushiki Kaisha Bildanzeigeanordnung und verfahren und bildverarbeitungsanordnung und -verfahren
EP2077663A4 (de) * 2006-09-28 2012-03-28 Sharp Kk Bildanzeigeanordnung und verfahren und bildverarbeitungsanordnung und -verfahren
US8384826B2 (en) 2006-10-27 2013-02-26 Sharp Kabushiki Kaisha Image displaying device and method, and image processing device and method
EP2091249A1 (de) * 2006-10-27 2009-08-19 Sharp Kabushiki Kaisha Bildanzeigeanordnung und verfahren und bildverarbeitungsanordnung und -verfahren
CN101968953A (zh) * 2006-10-27 2011-02-09 夏普株式会社 图像显示装置及方法、图像处理装置及方法
CN101968953B (zh) * 2006-10-27 2012-11-28 夏普株式会社 图像显示装置及方法、图像处理装置及方法
EP2091249A4 (de) * 2006-10-27 2012-04-04 Sharp Kk Bildanzeigeanordnung und verfahren und bildverarbeitungsanordnung und -verfahren
EP2066118A3 (de) * 2007-11-27 2011-09-28 Samsung Electronics Co., Ltd. Videovorrichtung und Verfahren zur GUI-Bereitstellung
EP2066118A2 (de) * 2007-11-27 2009-06-03 Samsung Electronics Co., Ltd. Videovorrichtung und Verfahren zur GUI-Bereitstellung
US8798132B2 (en) 2007-11-27 2014-08-05 Samsung Electronics Co., Ltd. Video apparatus to combine graphical user interface (GUI) with frame rate conversion (FRC) video and method of providing a GUI thereof
US8228341B2 (en) 2008-02-19 2012-07-24 Sony Corporation Image processing apparatus and image processing method, and program
EP2093711A3 (de) * 2008-02-19 2010-05-26 Sony Corporation Bildverarbeitungsvorrichtung und Bildverarbeitungsverfahren und Programm
EP2299691A3 (de) * 2009-09-08 2014-03-26 Samsung Electronics Co., Ltd. Bildverarbeitungsvorrichtung und Bildverarbeitungsverfahren
US8787701B2 (en) 2009-09-08 2014-07-22 Samsung Electronics Co., Ltd. Image processing apparatus and image processing method
CN102577365A (zh) * 2009-09-18 2012-07-11 夏普株式会社 视频显示装置
EP2479985A4 (de) * 2009-09-18 2013-03-13 Sharp Kk Videoanzeigevorrichtung
US8830257B2 (en) 2009-09-18 2014-09-09 Sharp Kabushiki Kaisha Image displaying apparatus
EP2479985A1 (de) * 2009-09-18 2012-07-25 Sharp Kabushiki Kaisha Videoanzeigevorrichtung
EP2400745A1 (de) * 2010-06-22 2011-12-28 Sony Corporation Bildanzeigevorrichtung, Anzeigesteuerverfahren und Programm
US9131190B2 (en) 2010-06-22 2015-09-08 Sony Corporation Method, device and program for controlling transparency of an image on a display screen
WO2012101542A1 (en) * 2011-01-28 2012-08-02 Koninklijke Philips Electronics N.V. Motion vector based comparison of moving objects
RU2602792C2 (ru) * 2011-01-28 2016-11-20 Конинклейке Филипс Электроникс Н.В. Сравнение движущихся объектов на основе вектора движения

Also Published As

Publication number Publication date
CN1496114A (zh) 2004-05-12
AU2003248047A1 (en) 2004-04-08
US20040085480A1 (en) 2004-05-06
AU2003248047B2 (en) 2005-05-19
CN1229983C (zh) 2005-11-30
JP2004120757A (ja) 2004-04-15

Similar Documents

Publication Publication Date Title
AU2003248047B2 (en) Method and video processing unit for processing a video signal
US7064790B1 (en) Adaptive video data frame resampling
US6927801B2 (en) Video signal processing apparatus and video displaying apparatus
JP2005208613A (ja) 適応型の表示制御装置
EP1727121B1 (de) Anzeigevorrichtung und Steuerverfahren dafür
WO1999016243A1 (en) Synchronized multiple format video processing method and apparatus
JP3514063B2 (ja) 受信装置
JP2008160591A (ja) テレビジョン受信機及びそのフレームレート変換方法
JP4933209B2 (ja) 映像処理装置
JP2009111936A (ja) 映像表示装置
US5001562A (en) Scanning line converting system for displaying a high definition television system video signal on a TV receiver
JP2002057993A (ja) インタレース・プログレッシブ変換装置、インタレース・プログレッシブ変換方法及び記録媒体
KR20090005732A (ko) 디스플레이장치 및 그 제어방법
EP2063636B1 (de) Videoverarbeitungsanordnung und videoverarbeitungsverfahren
JP4575431B2 (ja) 補正インタレース解除装置による保護
JP2005026885A (ja) テレビジョン受信装置及びその制御方法
KR100943902B1 (ko) 디지털 ｔｖ 모니터용 범용 영상 처리 장치
JPH07288780A (ja) テレビジョン信号処理方法
JP2000228762A (ja) 走査変換回路
JPH04351185A (ja) テレビジョン信号変換装置
JPH11266440A (ja) 画像信号の走査変換回路及び画像復号化装置
JP2007074439A (ja) 映像処理装置
JP4715057B2 (ja) 画像信号変換方法及び画像表示装置
KR100703165B1 (ko) 영상처리장치 및 영상처리방법
KR920010940B1 (ko) 픽쳐 인 픽쳐 표시기능을 가지는 tv표시장치 및 픽쳐 인 픽쳐 표시방법.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20040427

AKX Designation fees paid

Designated state(s): DE FR GB

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: PANASONIC CORPORATION

17Q First examination report despatched

Effective date: 20110221

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20110705